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FusionCol8000-E400 Modular Indirect Evaporative
Cooling System
User Manual
Fault
Type
Dangers Caused by Current
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Air Filter
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Electrical Control
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Issue 04 (2022-06-30)
Possible Cause
Fan blade friction/
collision
The fan is operating
in the stall zone
(applicable to an
axial fan)
The concentricity of
the air intake ring is
incorrect (applicable
to a centrifugal fan).
Electrical components can only be operated by professional electricians or
persons familiar with electricity, or under the supervision of an electrician.
Comply with five electrical safety regulations.
Do not operate when the equipment is powered on. Even after the equipment
is powered off, the intermediate circuit is still energized. Wait at least 3
minutes.
To disconnect electrical connections safely, take other measures if necessary.
For all operations on energized parts or circuits, there must always be two
persons present, so that one person can cut off the power supply in the case
of emergency.
The ventilation equipment can only be connected to a circuit with an
omnipolar isolator switch.
Follow the local standards for electromagnetic compatibility of the entire
equipment.
Periodically check the electrical equipment. Tighten the loose connector and
replace the damaged conductor or cable immediately.
When the final resistance of the air filter reaches the specified value, clean or
replace the air filter. Air filters are wearing parts.
Exercise caution when removing a dusty air filter from a metal frame to avoid
polluting the smart cooling product and damaging the filtering materials.
Replace the air filter.
Perform routine check on all electrical components and safety devices.
Periodically check valves that control the flow of media.
Check whether the grounding devices of the electric devices are complete and
functional.
Copyright © Huawei Technologies Co., Ltd.
8 System Operation and Maintenance
Solution
Clear foreign matters or dirt in the fan if
necessary.
Check whether the airflow is smooth (air
intake/exhaust damper and air filter).
Observe the installation precautions.
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